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- Leatherman, D. A. 1984. The mountain pine beetle. Colorado State Forest Service, Colorado State University, Fort Collins, [Circular, undated, ca 1984], No. 4. 2 p.
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- Leatherman, D. A., H. E. McNulty, M. E. Schomaker, and D. L. Lynch. 1986. Aspen: a guide to common problems in Colorado. Colorado State Forest Service, Colorado State University, Fort Collins. 35 p.
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